full transcript
"From the Ted Talk by Allan Adams: What the discovery of gravitational waves means"

Unscramble the Blue Letters

So the trouble with gravitational waves is that they're very weak; they're preposterously weak. For example, the waves that hit us on September 14 — and yes, every single one of you stretched and compressed under the action of that wave — when the waves hit, they stretched the average prsoen by one part in 10 to the 21. That's a decimal place, 20 zeroes, and a one. That's why everyone thought the LIGO people were nuts. Even with a lesar dcoetetr five kilometers long — and that's already crazy — they would have to measure the legtnh of those dtteorecs to less than one thousandth of the radius of the nceuuls of an atom. And that's preposterous.

Open Cloze

So the trouble with gravitational waves is that they're very weak; they're preposterously weak. For example, the waves that hit us on September 14 — and yes, every single one of you stretched and compressed under the action of that wave — when the waves hit, they stretched the average ______ by one part in 10 to the 21. That's a decimal place, 20 zeroes, and a one. That's why everyone thought the LIGO people were nuts. Even with a _____ ________ five kilometers long — and that's already crazy — they would have to measure the ______ of those _________ to less than one thousandth of the radius of the _______ of an atom. And that's preposterous.

Solution

  1. detectors
  2. laser
  3. person
  4. detector
  5. nucleus
  6. length

Original Text

So the trouble with gravitational waves is that they're very weak; they're preposterously weak. For example, the waves that hit us on September 14 — and yes, every single one of you stretched and compressed under the action of that wave — when the waves hit, they stretched the average person by one part in 10 to the 21. That's a decimal place, 20 zeroes, and a one. That's why everyone thought the LIGO people were nuts. Even with a laser detector five kilometers long — and that's already crazy — they would have to measure the length of those detectors to less than one thousandth of the radius of the nucleus of an atom. And that's preposterous.

ngrams of length 2

collocation frequency
black holes 11
gravitational waves 9
big bang 4
gravitational wave 3

Important Words

  1. action
  2. atom
  3. average
  4. compressed
  5. crazy
  6. decimal
  7. detector
  8. detectors
  9. gravitational
  10. hit
  11. kilometers
  12. laser
  13. length
  14. ligo
  15. long
  16. measure
  17. nucleus
  18. nuts
  19. part
  20. people
  21. person
  22. place
  23. preposterous
  24. preposterously
  25. radius
  26. september
  27. single
  28. stretched
  29. thought
  30. thousandth
  31. trouble
  32. wave
  33. waves
  34. weak
  35. zeroes